TPS54519RTER ,2.95V to 6V Input, 5A Synchronous Step-Down Converter 16-WQFN -40 to 150ELECTRICAL CHARACTERISTICST = –40°C to 140°C, VIN = 2.95 to 6 V (unless otherwise noted)JDESCRIPTIO ..
TPS54521RHLR ,17V Input, 5A Synchronous Step-Down Converter 14-VQFN -40 to 125FEATURES2• Integrated 57mΩ / 50mΩ MOSFETs • Power Good Output for Undervoltage andOvervoltage Monit ..
TPS54525PWPR ,4.5V to 18V Input, 5.5-A Synchronous Step-Down Converter 14-HTSSOP -40 to 85ELECTRICAL CHARACTERISTICSover operating free-air temperature range, V = 12V (unless otherwise note ..
TPS54526PWPR ,4.5V to 18V Input, 5.5A Synchronous Step-Down Converter with Eco-Mode? 14-HTSSOP -40 to 85 SLVSB84C–MAY 2012–REVISED JUNE 20146 Pin Configuration and FunctionsRSA PACKAGE(TOP VIEW)PWP PACKA ..
TPS54527DDAR ,4.5V to 18V Input, 5-A Synchronous Step-Down Converter 8-SO PowerPAD -40 to 85 SLVSAY5D–JULY 2011–REVISED AUGUST 20165 Pin Configuration and FunctionsDDA Package8-Pin SO PowerPA ..
TPS54528DDAR ,4.5V to 18V Input, 5-A Synchronous Step-Down Converter with Eco-mode? 8-SO PowerPAD -40 to 85Features 3 DescriptionThe TPS54528 is an adaptive on-time D-CAP2™1• D-CAP2™ Mode Enables Fast Trans ..
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TPS54519RTER
2.95V to 6V Input, 5A Synchronous Step-Down SWIFT?Converter
TPS54519 www.ti.com SLVSAT3A – SEPTEMBER 2011 – REVISED DECEMBER 2013 2.95 V to 6 V Input, 5-A Synchronous Step Down SWIFT™ Converter 1FEATURES DESCRIPTION The TPS54519 device is a full featured 6 V, 5 A, 2• Two 30 mΩ (typical) MOSFETs for high synchronous step down current mode converter with efficiency at 5-A loads two integrated MOSFETs. • 200kHz to 2MHz Switching Frequency The TPS54519 enables small designs by integrating • 0.6 V Voltage Reference With ± 1% Initial the MOSFETs, implementing current mode control to Accuracy reduce external component count, reducing inductor • Adjustable Slow Start / Sequencing size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm x • UV and OV Power Good Output 3mm thermally enhanced QFN package. • Low Operating and Shutdown Quiescent Current Efficiency is maximized through the integrated 30mΩ MOSFETs and 350μA typical supply current. Using • Safe Start-up into Pre-Biased Output the enable pin, shutdown supply current is reduced to • Cycle by Cycle Current Limit, Thermal and 2μA by entering a shutdown mode. Frequency Fold Back Protection Under voltage lockout is internally set at 2.6 V, but • –40°C to 140°C Operating Junction can be increased by programming the threshold with Temperature Range a resistor network on the enable pin. The output • Thermally Enhanced 3mm × 3mm 16-pin QFN voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage. APPLICATIONS • Low-Voltage, High-Density Power Systems Frequency fold back and thermal shutdown protects the device during an overcurrent condition. • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors The TPS54519 is supported in the SwitcherPro™ Software Tool at www.ti.com/switcherpro. • Broadband, Networking and Optical Communications Infrastructure For more SWIFT™ documentation, see the TI website at www.ti.com/swift. SIMPLIFIED SCHEMATIC 100 VIN C BOOT V = 5 V VIN IN BOOT 90 C R4 I TPS54519 L O VOUT EN PH 80 C O R5 V = 3 V IN R 1 PWRGD 70 VSENSE SS/TR 60 RT V = 1.2 V OUT GND COMP F = 1MHz R 2 SW AGND 50 C POWERPAD ss 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 R T R 3 I - Load Current - A L C 1 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2SWIFT, SwitcherPro are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2011–2013, Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Efficiency - %
